| All Country Flags of the World | 0 | - | 5.00 | 3,700,650 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,503 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,018 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,642 |
| Flags with Crescents | 0 | - | 4.98 | 170,961 |
| Country Flag Trivia | 0 | - | 4.81 | 57,778 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,611 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,187 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,281 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,749 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,781 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,331 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,409 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,980 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,042 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,551 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,005 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,318 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,019 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,301 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,194 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,121 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,136 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,105 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,169 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,959 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,580 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,008 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,988 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,401 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,787 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,932 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,285 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,497 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,579 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,527 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,725 |
| Flags of North and South America | 0 | - | 4.99 | 375,954 |
| Flags to Languages | 0 | - | 4.95 | 174,290 |
| Former Flags | 0 | - | 4.97 | 108,319 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,167 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,903 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,881 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,590 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,166 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,213 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,142 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,465 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,124 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,216 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,686 |
| Flag Maths | 0 | - | 4.61 | 57,816 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,587 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,044 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,174 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,975 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,603 |
| World Coats of Arms | 0 | - | 4.99 | 64,957 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,296 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,668 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,466 |
| Similar Flags #1 | 0 | - | 4.75 | 130,565 |
| Similar Flags #2 | 0 | - | 4.74 | 137,870 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,156 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,474 |
| Emoji Flags | 0 | - | 4.35 | 44,242 |
| Countries by Road Signs | 0 | - | 4.98 | 54,235 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,947 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,438 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,451 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,032 |
| Select the World Flags | 0 | - | 4.28 | 37,926 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,390 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,091 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,655 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,688 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,392 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,451 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,079 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,664 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,188 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,006 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,142 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,085 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,423 |
| Pixelated World Map | 0 | - | 5.00 | 143,909 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,884 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,928 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,550 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,843 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,014 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,361 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,069 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,317 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,754 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,280 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,634 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,193 |
| Geography by Picture - B | 0 | - | 4.42 | 55,741 |
| Geography by Picture - H | 0 | - | 4.50 | 58,341 |
| Geography by Picture - N | 0 | - | 4.45 | 42,313 |
| Geography by Picture - R | 0 | - | 4.56 | 41,119 |
| Geography by Picture - T | 0 | - | 4.54 | 57,962 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,776 |
| Flags of Oceania | 0 | - | 5.00 | 261,918 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,235 |
| Flags of WW1 | 0 | - | 4.60 | 38,607 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,313 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,332 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,297 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,641 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,296 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,522 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,125 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,823 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,820 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,761,296 |
| Landlocked Countries | 0 | - | 4.99 | 424,203 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,454 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,709 |
| Satellite Images #1 | 0 | - | 4.47 | 129,608 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,501 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,088 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,113 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,114 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,449 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,876 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,428 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,571 |
| Merged Countries #2 | 0 | - | 4.96 | 99,762 |
| Merged Countries #6 | 0 | - | 4.90 | 73,698 |
| Merged Countries #7 | 0 | - | 4.93 | 83,040 |
| Geography by Picture - A | 0 | - | 4.39 | 60,392 |
| Geography by Picture - D | 0 | - | 4.15 | 45,758 |
| Geography by Picture - F | 0 | - | 4.31 | 51,137 |
| Geography by Picture - G | 0 | - | 4.39 | 48,051 |
| Geography by Picture - J | 0 | - | 4.16 | 38,566 |
| Geography by Picture - K | 0 | - | 4.29 | 33,222 |
| Geography by Picture - C | 0 | - | 4.31 | 57,196 |
| Geography by Picture - L | 0 | - | 4.37 | 59,097 |
| Geography by Picture - M | 0 | - | 4.14 | 40,554 |
| Geography by Picture - P | 0 | - | 4.24 | 42,535 |
| Geography by Picture - S | 0 | - | 4.38 | 47,151 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,669 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,474 |
| Islands by Picture | 0 | - | 4.28 | 107,572 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,838 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,257 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,766 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,791 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,726 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,499 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,210 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,224 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,762 |
| Island Countries | 0 | - | 4.99 | 711,947 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,508 |
| Himalayan Countries | 0 | - | 4.94 | 139,663 |
| Andean Countries | 0 | - | 4.94 | 85,130 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,315 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,557 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,887 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,170 |
| Danube Countries | 0 | - | 4.97 | 72,247 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,377 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,677 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,796 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,287 |
| European Landlocked Countries | 0 | - | 4.99 | 147,426 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,036 |
| Countries with the Most Species | 0 | - | 4.99 | 103,453 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,172 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,699 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,809 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,723 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,451 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,874 |
| Countries in the Alps | 0 | - | 4.87 | 118,535 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,208 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,541 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,839 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,849 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,774 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,962 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,704 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,326 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,780 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,644 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,421 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,663 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,748 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,445 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,495 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,435 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,445 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,089 |
